Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
* Total i10 Index Rankings
World Rank
677,599
Country Rank
717
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/4762.png)
![Kenya](/flags/ke.png)
![George G. Ndiritu](/user/assets/images/profile/no-profile-photo.png)
Landscape ecology
Biodiversity
Microbial Sciences
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
14
0.778
* Total i10 Index Rankings
World Rank
1,251,897
Country Rank
2,358
Institution Rank : 22
![](https://cdn.adscientificindex.com/logos/4762.png)
![Kenya](/flags/ke.png)
![Geoffrey Wambugu](/user/assets/images/profile/no-profile-photo.png)
Biodiversity
Conservation
Spatial Ecology
Climate Change
Environmental Planning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 Index Rankings
World Rank
1,816,952
Country Rank
5,396
Institution Rank : 60
![](https://cdn.adscientificindex.com/logos/4762.png)
![Kenya](/flags/ke.png)
![Zachary Mutinda Muteti](/pictures/97/4835220.jpg)
Wildlife Ecology
Wildlife Behaviour
Wildlife Research
Environmental Science
Conservation Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 Index Rankings
World Ranking
677,599
Country Ranking
717
Institution Ranking
5
George G. Ndiritu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
14
0.778
![](https://cdn.adscientificindex.com/logos/4762.png)
Landscape ecology
Biodiversity
Microbial Sciences
* Total i10 Index Rankings
World Ranking
1,251,897
Country Ranking
2,358
Institution Ranking
22
Geoffrey Wambugu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/4762.png)
Biodiversity
Conservation
Spatial Ecology
Climate Change
Environmental Planning
* Total i10 Index Rankings
World Ranking
1,816,952
Country Ranking
5,396
Institution Ranking
60
Zachary Mutinda Muteti
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
![](https://cdn.adscientificindex.com/logos/4762.png)
Wildlife Ecology
Wildlife Behaviour
Wildlife Research
Environmental Science
Conservation Biology